Bug 5618: Multiple renewals in the opac

Bug 5618: Multiple renewals in the opac

Enables logged-in OPAC patrons to renew multiple items at once using checkboxes.

Errors are now handled better (for example, when item is on reserve)

Sponsored by Los Gatos Public Library

Squashed commit of the following:

commit 020d9904ddb22af238c8a90c1f7447ead5a6d0e7
Author: Chris Cormack <chrisc@catalyst.net.nz>
Date:   Thu Jan 20 08:57:01 2011 +1300

    Bug 5618: typo fix

commit 147cfd91dbe88fd58c5d404db9bf06a21310e2ef
Author: Chris Cormack <chrisc@catalyst.net.nz>
Date:   Thu Jan 20 08:47:39 2011 +1300

    Bug 5618: Adding better error handling for reserves, and always redirecting instead of exploding

commit 2dfb6c687d0d38c240e22d41f2aef6e3a9e53f02
Author: Chris Cormack <chrisc@koha.(none)>
Date:   Fri Jan 14 15:39:20 2011 +1300

    Bug 5618: Is mostly working now, needs some prettying up

commit f8d260a4dcde144c9ed487521a79ee687ff8feb3
Author: Chris Cormack <chrisc@catalyst.net.nz>
Date:   Fri Jan 14 15:03:45 2011 +1300

    bug 5618: Initial commit to set up checkboxes for choosing multiple items

Signed-off-by: Ian Walls <ian.walls@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>